Vedic astrology

Navamsa

Navamsa (the D9 chart) is one of Vedic astrology's so-called divisional charts, dividing every zodiac sign into nine parts — traditionally examined mainly for marriage and relationships.

It's treated as a "second", supplementary chart to the main one (the Rashi Chart, D1) — a planet strong in D1 but weak in the Navamsa may, in practice, operate more weakly than the main chart alone would suggest, and vice versa.